thousands of onlookers are pulling out their phones and cameras to document the city of san francisco at a stand still. and then it got contentious at many points. we have one of those moments to show you right now. that was van ness and pine. one driver lost his patience. he was trapped very upset, and you could hear the is understand of -- hear the hundreds of cars were just a as fed up. but where we are standing at seventh and market, it was a different scene two hours ago. take a look. hundreds of cyclist dominated the intersection, and watch this cirque de soleil her form -- performance on the side of the building. it was completely unrelated, but it kind of calmed down the crowds of these cyclists for awhile. and actually the crowds were and they all went their own way. they say they were peaceful and they created some angry drivers. but dan and carolyn, there were no arrests tonight. kyra clapper, abc news. >> thanks, kyra. the mission district uh-huh loft kris cal mass demonstrators. critical mass demonstrators. >> at the intersection of 18th and vaw vaw lens yaw, a splinter g